Tag: hf propagation

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DX News – July 27, 2025

Getting ready Yagi

Propagation Forecast

Solar activity continues to influence HF propagation significantly. Expect moderate conditions over the next three days:

  • July 27-28: Solar flux index (SFI) around 145-150; A-index between 8 and 10. Good openings expected on 15m and 20m bands, with potential for enhanced propagation on 10m during midday hours.
  • July 29: Slight decrease in solar activity; SFI approximately 140; A-index slightly elevated around 12. Conditions remain fair to good, particularly during early evening hours.

DXpedition Updates

  • Bouvet Island (3Y0J): Final preparations underway for the highly anticipated Bouvet Island DXpedition scheduled for late August. Equipment has arrived at staging locations; full operational capabilities are confirmed, covering HF bands with emphasis on CW, SSB, and FT8.
  • Pitcairn Island (VP6A): Active until August 5, 2025. Operators continue to report strong signals worldwide, with particularly favorable propagation into Asia and North America on 17m and 20m.

Contesting News

  • IOTA Contest 2025 (July 29-30): The annual Islands On The Air (IOTA) contest takes place this weekend. Activity expected to peak with numerous island activations. High participation anticipated from EU and AS regions, with notable island DX entities confirmed participation.
  • CQ WW VHF Contest Results: Preliminary results indicate strong showings from stations in North America and Europe, with record-breaking scores reported in the 6-meter category.

Noteworthy Equipment

  • Yaesu FT-710 HF Transceiver: Recently launched and positively received by contesters and DXers alike, praised for its exceptional noise reduction and intuitive user interface.
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📡 DX News — June 12, 2025

Erecting Yagi

Here’s today’s fresh DX & contesting roundup to keep your shack tuned and ready:

🌍 Active DXpeditions

CallLocationDatesBands / Modes
KH0NMariana IslandsJune 12–15, 2025HF, FT8 / FT4
W6CPL/VP9BermudaJune 12–22, 2025HF, SSB / CW / FT8
FO/G0VJGFrench PolynesiaJune 12–27, 202580–10 m (+6 m), all modes
YI0CTIraqJune 13–16, 2025HF, CW / SSB / FT8
ZC4TH / ZC4RHCyprus (SBA areas)June 14–20 & June 28HF, CW / SSB / FT8 / FT4

Note: Great opportunity for local Cyprus ops this month with ZC4 stations going active twice!

📡 Propagation Forecast

The Sporadic E (Es) season is in full swing across the northern hemisphere.
Watch for enhanced short-skip DX on 6 m and even on VHF (144 / 432 MHz). Expect openings especially in the mornings and late afternoons.

👉 Keep those beams ready — strong Es openings can arrive with little notice!

🏆 Contesting Highlights

📅 Upcoming Major Events

  • ARRL Field Day — June 28–29
    Great annual event for emergency operating practice and field setups.
  • RSGB IOTA Contest — July 26–27
    A fantastic chance to work rare island stations. Popular among European and worldwide DXers alike.

🆕 Equipment & Tech Highlights

This month’s DX community chatter includes:

  • Latest rare DX activations covered in June video roundups.
  • Gear spotlight: Radio Shack DX-394 receiver review making the rounds in the community.

Summary Highlights

  • Active DXpeditions on the air now in Iraq, Cyprus, Bermuda, French Polynesia, Mariana Islands.
  • Sporadic E propagation peaking — stay alert on 6 m and VHF.
  • ARRL Field Day and RSGB IOTA contests just around the corner.
  • New equipment chatter and community videos worth checking out.

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HF DX Outlook: Stable Flux but Mild Geomagnetic Activity — Best Bands 20m & 17m (Jun 9, 2025)

DX Holiday

🌞 Space Weather & Propagation Overview (as of Jun 9, 2025 – 07:35 UTC)

  • Solar Flux Index (SFI): 115 — solid for DX performance
  • Sunspot Number (SSN): 87 — moderate solar activity
  • Geomagnetic Conditions: A‑index = 15 (active), Kp‑index = 4 (unsettled) — mild disturbance, manageable
  • Solar Wind Speed: ~497 km/s — slight enhancement in geomagnetic activity
  • Radio-absorption X-ray Level: B4.6 — benign
  • Bottom line: Solar flux and SSN are favorable for HF DX, but unsettled geomagnetic conditions may induce brief absorption or fadeouts.

📶 HF Band Conditions

Band Range (MHz)DaytimeNighttime
80–40 m (3.5–7.3)PoorFair
30–20 m (10.1–14.35)FairFair
17–15 m (18.07–21.45)FairFair
12–10 m (24.89–29.7)PoorPoor
  • Best DX opportunities: 20 m and 17 m remain your strongest bets around the clock. Morning and late afternoon on 40 m might surprise you. 
  • Poor conditions: Expect weak openings on 10, 12, and (during the day) 80 m.

🗺️ Quick Path Check

  • Real-time maps (e.g., HF.dxview.org) show active MUFs, with occasional openings on 17 m and 20 m.
  • CW or digital modes performing better due to higher tolerance to noise — SNR > 10 dB for SSB, > –1 dB for CW.

🔭 VHF/UHF Note

  • Keep an eye on VHF activity maps for sporadic‑E or tropospheric enhancements — nothing unusual reported for today yet.

✅ Actionable Tips for Today

  1. 20 m & 17 m: Monitor these all day—likely best DX channels.
  2. 40 m (evening/night): Fair conditions could work for moderate-distance DX.
  3. Avoid 10–12 m unless MUF unexpectedly rises (rare with current flux).
  4. Use CW/digital modes to maximize success under current noise levels.
  5. Keep an eye on real-time propagation maps and adjust if solar conditions shift later today.

🌍 Current & Upcoming DXpeditions

  • T30TTT (Tarawa, Kiribati) — Active since ~June 8 from OC‑017 on 40‑6 m using CW/SSB/FT8
  • FO/G0VJG (Bora Bora, French Polynesia) — QRV from June 10–26, mainly using high-band modes
  • V51/HB9SHD (Namibia) — Operating through June 15 on 40‑6 m, SSB + digital.
  • VP8DPD (Falkland Islands) — On the air until July 12 on 20‑10 m with FT8/SSB
  • 3DA0GY (eSwatini) — Active until June 20 on CW/SSB, possibly join CQ WPX CW

📅 Also coming soon:

  • JD1BQP (Ogasawara) — June 12–21 expected on high/very high bands

🎯 Contesting & Test Activity

Today’s Contests (June 9, 2025)

  • K1USN Slow Speed Test (0000–0100 Z): CW on 160–10 m
  • ICWC Medium Speed Test (1300–1400 Z & again 1900–2000 Z): CW, wide band coverage
  • OK1WC Memorial (MWC) (1630–1729 Z): CW on 80 & 40 m

📌 Reminder: Don’t miss the mid-late evening ICWC session at 1900–2000 Z.

🔜 Upcoming Notable Contests This Week

  • Worldwide Sideband Activity Contest (June 10, 0100–0159 Z) — Single-op, all bands (SSB focus)
  • DARC CW-Training Contest (June 10, 1800–1859 Z) — CW on 80 m only
  • VHF‑UHF FT8 Activity Contest (June 11, 1700–2100 Z) — 432 MHz FT8 for Europe-focused grid chasingn5
  • CWops Weekly CWT Tests — Multiple CW speed sessions through the week on various bands

🎉 Coming Soon: Field Day (June 28–29)

ARRL Field Day is next weekend — the fourth full weekend in June (June 28–29 this year). Great for portable station ops, emergency comms drills, and a mix of modes. Clubs and solo ops, get ready!

✅ What This Means for You

  • DXpeditions: Expect active DX openings on 20 m and 17 m—Jar the rare country pile-ups, especially from VP8DPD and FO/G0VJG.
  • CW Operation: Excellent opportunities today on 80 m and 40 m during ICWC and OK1WC. CWops CWTs mid-week are ideal for speed sharpening.
  • SSB/FT8: Sideband contest on the 10th and FT8 on VHF/UHF on the 11th are worth a slot in your operating plan.
  • Field Day Prep: Start planning your layout, power, and mode mix now—propagation charts indicate promising 20 m conditions for FD weekend.
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📡 DX Propagation Update – June 4, 2025

🌐 Geomagnetic Activity Overview

Over the past few days, Earth has experienced heightened geomagnetic activity due to a series of coronal mass ejections (CMEs) and solar flares. Notably, a G4 (Severe) geomagnetic storm was observed on June 2, triggered by a CME impact and intensified by high-speed solar wind streams from coronal holes. This event led to widespread auroral displays at lower latitudes and caused disruptions in radio communications and satellite operations.

📈 Current Conditions

  • Kp Index: Currently fluctuating between 4 and 5, indicating unsettled to minor storm conditions.
  • Solar Flux Index (SFI): Elevated levels around 160, supporting enhanced propagation on higher HF bands.
  • Auroral Activity: Still elevated, with potential visibility at mid-latitudes during nighttime hours.

📡 HF Band Conditions

  • 80m & 40m: Nighttime propagation remains stable, with some absorption during peak geomagnetic activity.
  • 30m & 20m: Variable conditions; openings are possible but may be short-lived and affected by geomagnetic fluctuations.
  • 17m, 15m, 12m, & 10m: Enhanced propagation expected, especially during daylight hours, due to elevated SFI.

🔮 Forecast

Geomagnetic conditions are expected to gradually return to normal levels over the next 24–48 hours. However, continued monitoring is advised as solar activity remains high during the current solar maximum phase.

🗓️ DXpeditions & Contests

🌍 Active DXpeditions

  • 5V7RU – Togo: Active on all bands; operators report good conditions on 20m and 17m.
  • VK9NT – Norfolk Island: Focus on low bands; challenging conditions due to recent geomagnetic activity.
  • CY0S – Sable Island: Limited operation windows; check cluster spots for real-time updates.

🏆 Upcoming Contests

  • ARRL June VHF Contest: June 14–15; excellent opportunity for grid hunters and VHF enthusiasts.
  • All Asian DX Contest (CW): June 21–22; focus on Asian stations, great for DXers seeking new entities.

🛠️ Equipment News

  • Icom IC-905 Release: Icom’s new VHF/UHF/SHF transceiver is now shipping; early reviews highlight its versatility for satellite and EME operations.
  • Yaesu FTdx101MP Firmware Update: Latest firmware addresses keying issues and improves CW performance.
  • Elecraft K4 Availability: Production delays continue; next shipment expected in late July.
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DX News – June 1, 2025

DX pedition

📡 Active DXpeditions

  • Eswatini (3DA0GY): Morten, LA9GY, is active as 3DA0GY until June 2. He’s operating CW and some SSB, focusing on 20, 15, and 10 meters, with possible activity on 80, 40, 30, 17, and 12 meters. QSL via Logbook of The World or directly to his home call.
  • Gabon (TR8CR): Roland, F8EN, has extended his stay and will be operating as TR8CR until mid-June. He’s operating CW only. QSL via F6AJA.
  • Honduras (HR9): Alex, K6VHF, is QRV as K6VHF/HR9 from June 1–30 on 80–6 meters using FT8, FT4, SSB, RTTY, and CW.
  • Faroe Islands (OY): A DXpedition is underway from June 1–10. Details are available on DX-World.net.

🏆 Contesting Highlights – June 1, 2025

📅 Ongoing & Upcoming Contests

  • PODXS 070 Club Three Day Weekend Contest: Runs until 23:59Z today. Mode: PSK31 on 160–6 meters. Open to worldwide participants.
  • PVRC Reunion: Today from 17:00Z–20:00Z. Modes: CW, SSB, RTTY on 160–10 meters. Open to all, with a focus on PVRC members.
  • K1USN Slow Speed Test: Starts at 00:00Z on June 2. Mode: CW at speeds up to 20 wpm on 160–10 meters. Great for CW newcomers.
  • ICWC Medium Speed Test: Runs from 13:00Z–14:00Z and again from 19:00Z–20:00Z on June 2. Mode: CW on 160–10 meters.

📡 HF Propagation Forecast – June 1–3, 2025

⚠️ Geomagnetic Storm Alert

A G4 (Severe) geomagnetic storm is currently impacting Earth due to a coronal mass ejection (CME) that arrived earlier today. This is causing significant disturbances in the ionosphere, leading to degraded HF radio propagation, especially at higher latitudes.

📈 Solar Indices

  • Solar Flux Index (SFI): 164
  • A-index: 16
  • K-index: 7.33 

📡 HF Band Conditions

  • 80m & 160m: Expect increased noise levels and potential signal fading during nighttime hours.
  • 40m & 30m: Variable conditions with possible short-term openings; monitor for sudden changes.
  • 20m–10m: High-latitude paths may experience significant degradation; equatorial and mid-latitude paths could see sporadic openings.

🌐 Regional Notes

  • Europe & North America: HF propagation is currently unstable due to geomagnetic disturbances. Operators may experience rapid changes in signal strength and quality.
  • Asia & Oceania: Similar conditions prevail; however, some southern regions may experience brief periods of improved propagation.

🌠 Aurora Alert

The ongoing geomagnetic storm has increased the likelihood of auroral activity at lower latitudes. Observers in regions as far south as Alabama and northern California in the U.S. may witness auroras tonight.